FR1200214A - Punch mask treatment to prevent cathode poisoning - Google Patents

Punch mask treatment to prevent cathode poisoning

Info

Publication number
FR1200214A
FR1200214A FR1200214DA FR1200214A FR 1200214 A FR1200214 A FR 1200214A FR 1200214D A FR1200214D A FR 1200214DA FR 1200214 A FR1200214 A FR 1200214A
Authority
FR
France
Prior art keywords
mask treatment
prevent cathode
cathode poisoning
punch mask
punch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Corning Glass Works
Original Assignee
Corning Glass Works
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Corning Glass Works filed Critical Corning Glass Works
Application granted granted Critical
Publication of FR1200214A publication Critical patent/FR1200214A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
FR1200214D 1957-02-25 1958-02-21 Punch mask treatment to prevent cathode poisoning Expired FR1200214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US642073A US2908838A (en) 1957-02-25 1957-02-25 Aperture mask treatment to prevent cathode poisoning

Publications (1)

Publication Number Publication Date
FR1200214A true FR1200214A (en) 1959-12-18

Family

ID=24575074

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1200214D Expired FR1200214A (en) 1957-02-25 1958-02-21 Punch mask treatment to prevent cathode poisoning

Country Status (7)

Country Link
US (1) US2908838A (en)
BE (1) BE565080A (en)
CH (1) CH347225A (en)
DE (1) DE1091674B (en)
FR (1) FR1200214A (en)
GB (1) GB841405A (en)
NL (1) NL225220A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2165703A1 (en) * 1971-12-30 1973-07-12 Hitachi Ltd PUNCHED MASKS FOR COLOR TUBES
US4621214A (en) * 1984-04-19 1986-11-04 Rca Corporation Color selection means having a charged insulator portion for a cathode-ray tube
US4622084A (en) * 1985-01-29 1986-11-11 Chang Kern K N Method of sealing a mount in a cathode-ray tube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279168A (en) * 1940-02-29 1942-04-07 Westinghouse Electric & Mfg Co Process for kovar-glass seals
BE479146A (en) * 1941-12-31
US2392099A (en) * 1943-07-29 1946-01-01 Bell Telephone Labor Inc Manufacture of glass sealed contact units
US2777084A (en) * 1952-04-12 1957-01-08 Gen Electric Plastic electrode structure for electron tubes
US2805360A (en) * 1954-10-08 1957-09-03 Gen Dynamics Corp Image storage apparatus

Also Published As

Publication number Publication date
BE565080A (en)
CH347225A (en) 1960-06-30
GB841405A (en) 1960-07-13
DE1091674B (en) 1960-10-27
NL225220A (en)
US2908838A (en) 1959-10-13

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